Dressed particle approach in quantum field theory
APA
Stefanovich, E. (2008). Dressed particle approach in quantum field theory. Perimeter Institute. https://pirsa.org/08050029
MLA
Stefanovich, Eugene. Dressed particle approach in quantum field theory. Perimeter Institute, May. 05, 2008, https://pirsa.org/08050029
BibTex
@misc{ pirsa_PIRSA:08050029, doi = {10.48660/08050029}, url = {https://pirsa.org/08050029}, author = {Stefanovich, Eugene}, keywords = {Cosmology}, language = {en}, title = {Dressed particle approach in quantum field theory}, publisher = {Perimeter Institute}, year = {2008}, month = {may}, note = {PIRSA:08050029 see, \url{https://pirsa.org}} }
Collection
Talk Type
Subject
Abstract
I will review an old (Greenberg and Schweber, 1958) and undeservedly forgotten idea in quantum field theory. This idea allows one to reformulate QFT as a Hamiltonian theory of physical (rather than bare) particles and their direct interactions. The dressed particle approach is scattering-equivalent to the traditional one, however it doesn\'t require renormalization and may provide a valuable tool for calculations of wave functions of bound states and time evolution.